What should be considered when dealing with concurrent skin conditions?

Excessive sweating creates a constantly moist environment on the skin. This moisture can contribute to various skin problems, which therefore often occur alongside hyperhidrosis. These include, in particular:

• Dyshidrotic eczema
  Small, intensely itchy blisters on the hands and feet.
• Athlete's foot (Tinea pedis)
  Scaly skin, itching, blisters, thickening of the skin, and sore or weeping areas.
• Hand fungus (Tinea manuum)
  Redness, flaky skin, itching, irritation, as well as blisters or small pus-filled pustules.
• Tinea versicolor
  Small brownish, gray, or white patches on the skin.
• Heat rash (Miliaria)
  Mild redness, burning, a sensation of heat, and small blisters.
• Pitted keratolysis (Keratoma sulcatum)
  Small pits in the upper layer of the skin, often accompanied by an unpleasant odor.

Tap water iontophoresis can help these conditions subside more quickly and prevent recurrence by reducing sweat production.

Some of these skin conditions initially go unnoticed, meaning they present no visible symptoms. During iontophoresis treatment, redness, blisters, pustules, or small indentations may suddenly appear. In such cases, these changes are not caused by the iontophoresis itself, but primarily by a pre-existing skin condition.

If the symptoms are severe, you should seek medical advice so that an accurate diagnosis can be made and the appropriate treatment determined.

Please note:
If the skin barrier is severely damaged—for example, due to open sores or cracks—tap water iontophoresis may not be suitable (see “Burning in specific areas of the skin?”).